Null results can occur in evaluation research because
A) the program did not meet its objectives.
B) the study did not have sufficient statistical power to detect an effect of the program.
C) the researchers did not properly operationally define the variables in the study.
D) of any of the above.

Question

Quizplus · Accepted Answer

Null results in evaluation research can occur for various reasons including the program not meeting its objectives, insufficient statistical power to detect an effect, or improper operational definition of variables. Each of these factors can lead to a failure to observe expected outcomes, hence the correct answer is that null results can occur due to any of the mentioned reasons.

Null Results Can Occur in Evaluation Research Because